Gun with railway gun-carriage



H. LORENZ.

GUN WITH RAILWAY GUN CARRIAGE.

APPLICATION FILED SEPT. 8, 1920.

1 ,$360,549. Patented Nov. 30, 1920.

V bogaes C,

EJN'E STATES Parser Aostina.

RUDOLF LORENZ, OF ESSEN, GERMANY, ASSIG-NOR TO FRIED. KRUPPAKTIENGESELL- SCHAFT; OF ESSEN-ON-THE-R-UHR, GERMANY.

GUN WITH RAILWAY GUN-CARRIAGE.

. Specicaton of Letters Patent.

Patented Nov. 30, 1920.

Application led September 8, 1920. Serial No. 408,980.

T0 all who/m t 'may conce/rn:

Be it known that I, RUDOLF LORENZ, residing at Essen, Germany, a citizenof the German Republic, have invented certain new and usefulImprovements in Guns with Railway Gun-Carriages, of which the followingis a specification.

This invention relates to `guns with railway gun carriages and hasreference' to the special arrangement of the rear bogie of the railwaycarriage.

The invention will be described with reference to the accompanyingdrawings in which the invention is diagrammatically illustrated.

Figure l is a side elevation of the gun in the transport position,

Fig. 2 is a side elevation or' the gun in the firing position and Fig. 3is a transverse section on a larger scale through the bogie pinbearingof the rear bogie.

rEhe railway gun carriage `has a frame B, which is supported at 01 andZ1 on two D. The gun barrel E is guided in the cradle i?, which ispivotally mounted in the frame B by means of horizontal trunnions f1.Between the cradle F and the frame B there is interposed an elevatinggear not shown in the drawing.

rEhe pivot pin ot' the rear bogie D, which is constructed in the form ofa knuckle pin J (see Fig. 3) bears in a pan di. This knuckle pinis fixedto the frame B by means of ribs g1 of a slideway plate G connected tothe frame. The bogie D is secured relatively to the frame B by means ofa bolt H (see Fig. 3) which can Vbe inserted in bolt holes in the partsB, Gr and .l J1. in the frame B and the slideway G are formed bolt holeswhich correspond to the positions I and Il of the bogie D (see Figs. land 2) When the gun is in the transport position, the rear bogie Doccupies the position I (see Fig. l) in which it is brought so near tothe front bogie C that on curves the gun is not swung too far sidevise,and therefore the contour of the railway line can be ei'iicientlyutilized. The distances i and *1 between the vertical axes oi: rotationof the bogies C, D, from the center of gravity S of the gun as a wholeare so calculated that the load is uniformly distributed on the severalaxles of the bogies.

As shown in the drawing the center of gravity S lies nearer to the frontbogie C, which is therefore more heavily loaded and therefore has oneaxle more than the rear bogie` This corresponds to the actual conditionsand is the result of the fact that an equalizer (not shown in thedrawing) is to be mounted on the front part Oi' the frame B, whichcompensates the front weight of the parts of the gun, which oscillateabout the trunnions.

T'Vhen the gun is to be transferred to the ring position, the bogie D ispushed to the rear into position II, (see Fig. 2) and secured in thisposition by the bolt Bl. vVith the rear bogie in this position thedistance between the bogie D and the trunnions fl is so great that thegun barrel E when iii-ed at an elevation and recoiling does not st1 eagainst the bogie (see the position of the barrel E shown in dot anddash lines in Fior. 2).

laims.

l. A railway gun and carriage therefor which comprises a frame, a gunsupporte@ on the frame, two bogies, means pivotally supporting saidframe at each end thereof upon one of the bogies and means whereby thispivotal support at one end of the traine may be varied.

2. A. railway gun and carriage therefor which comprises two 1oogies., aframe supporting the gun, pivotal connections between each end of theframe and the bogiA i and means whereby one of these pivotal connectionscan be adjusted longitudinally oif the frame.

3. A railway gun and carriage therefor which comprises bog-ies, a framesupporting the gun, means pivotally supporting' each end of the frameupon the bogies, one of said pivotal connections comprising a knucklepin, a bearing therefor, said knuckle pin being slidably mounted withrespect to said frame and means for securing said knuckle pin in itsadjusted positions, substantially as described` The foregoingspecification sil ned at Essen, Germany, this 20th day of Miay, 1920.

R. LORENZ.

In presence of- HANs GOTTSMANN, JOSEF OLBERTZ.

